Railway-car-roof structure



V. E. SISSON'.

RAILWAY CAR ROUF STRUCTURE.

APPLICATION FILED JUNE 18. 1912.

Patented May 3, 1921.

3 SHEETSYSHEET 1.

l/VlENT i M fiwa ATTORNEYJ.

V. E. SISSON.

RAILWAY CAR ROOF STRUCTURE.

APPLICATION FILED JUNE 18, 1911.

1,376,469. P n May 3, 1921.

3 SHEETS-SHEET 2.

zm /w V. E. SISSON. RAILWAY CAR ROOF STRUCTURE.

APPLICATION FILED was l8. I917- Patented May 3, 1921.

3 SHEETS-SHEET 3 mm/won ZZM A TTORNEKS WITNESSES:

UNITED STATES PATENT OFFICE.

VINTON E. SISSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE PRESSED STEEL MANU- FACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

RAILWAY-CAR-ROOF STRUCTURE.

Application filed June 18,

To all whom it may concern:

Be it known that I, VINTON E. SISSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Railway-Car-Roof Structures, of which the following is a specification.

Iy invention relates to railway car construction, and particularly to a roof structure for a railway box car.

A primary object of the invention is to provide a metal carline for support ng the roof sheet of the carand for bracing the upper portion of the superstructureagalnst weaving and like strains, which will have great strength and rigidity in respect to both of these functions and at the same time will be relatively light in weight.

A further object is to provide a carline which can be manufactured conveniently and at a low cost.

The invention consists of the constructions and arrangements, to be hereinafter described and claimed, for carrying out the above stated objects and such other incidental arrangements as will appear from the following description.

The invention is illustrated, in certain preferred embodiments, in the accompanying drawings wherein- Figure 1 is a plan view of a carline constructed in accordance with my invention shown as attached to the Z-bar side plates which form portions of the side wall structures of the car.

Fig. 2 is a side elevation of the carline.

Fig. 3 is a sectional view on line 33 of Fig. 1.

Fig. 4 is a plan view illustrating a modified construction.

Figs. 5 and 6 are sectional details on lines '55 and 66, respectively, of Fig. '4.

Fig. 7 is a plan view of another modification.

Fig. 8 is a side elevation of the same.

Fig. 9 is a section on line 9-9 of Fig. 7.

Fig. 10 is a plan view of a somewhat different embodiment of the invention.

Fig. 11 is a side elevation of thesame, and

Figs. 12 and 13 are sectional views on Specification of Letters Patent.

Patented Ma y3, 1921. 1917. Serial No. 175,471

lines 12'12 and 13-13, respectively, of Fig. 10.

Like characters of reference designate llke" parts in the several figures of the drawings.

The carline shown in Figs. 1, 2 and 3 is composed of two angle bars 25, 26. The angle bar element 25 is formed with a lateral bend at the point 27 on one side of the longitudinal center line of the car roof. The element 26 is formed with a corresponding lateral bend at point 28 on the other side of said center line. The vertical webs 29, 30 of the angle bars lie flatwise against each other between the points 27 and 28 and are secured together by any suitable fastening devices, such as the rivets 31. Preferably the angle bars are arranged in inverted relation wlth respect to each other; for example, as shown in the drawings, the angle bar 25 is disposed so that its lateral web 32 extends from the lower edge of the structure while angle bar 26 has its lateral web 33 at the upper edge of the structure. ,By this arrangement the neutral axis of the carline,

considered as a beam, coincides substant ally with the geometrical axis. The carline is preferably made of steel and has a steel bar or beam of substantially the same resistance in tension and compression. The arrangement described provides a structure having a maximum load-carrying strength for the amount of metal used.

The ends of the carline are shown as secured to Z-bar side plates 34. Preferably one of the angle bars, for example, an 1e bar 25. rests upon and is secured to t e upper horizontal flanges 35 of the side plates, this element being bent down at points 27, 28 so as to have the slope of the roof, while the other'angle bar 26 is bent,

at the same points, at greater angles so that its extremities are secured to thefvertical as against relative vertical movements between opposite side walls.

A modification is shown in Figs. 4, and 6 employing T-irons instead of angle bars in the construction of the'carline. The T- iron sections 41, 42 are formed with lateral] bends at points 43, 44 and their lateral webs 45, 46 are secured together by rivets 47. In this construction all four legs of the structure are secured to the upper flange 47 of the Z-bar side plates 48 by means of rivets 49.

A somewhat different arrangement is shown in Figs. 7 to 9 inclusive. The carline elements 50, 51 are bent to ya V-shape and the apexes of the VS are secured fiat,- wise one to the'other by rivets 52. The side plates 53 are shown as wooden beams, [The extremities of the legs overlap the corners of the side plates and are secured thereto by bolts 54.

Figs. 10 to 13 inclusive, illustrate a further modification in which a separate element, for example, the Z-bar 55 is employed bent laterally to provide legs of unequal length and has a vertical web and a web extending laterally therefrom, the said ele ments being arranged with relation to each other so that the lateral webs extend along the upper and lower edges of the carline,-

whereby the neutral axis of the carline, considered as a beam, is substantially the geometrical axis thereof.

2. A metal carline having a pair of di vergent legs at each end comprising two elements secured together, each of which has a vertical web and a laterally extending web, the lateral web of one-element extending from the upper edge of the vertical web and that of the other element from the lower edge of the vertical web.

3. A substantiallyX-shaped metal carline comprising two elements each of which has a vertical web and a web extending laterally therefrom, the lateral web of one element being disposed along theupper edge of the structure and the corresponding web of the other element along the lower edge thereof.

4. A metal carline having a pair of diverging legs at each end adapted to bear on the side walls of the car and comprisin two elements each of which is bent laterally to provide legs of unequal length, the longer legs of which are 'secured together adjacent said lateral bends at a point near the longitudinal center line of the car, said carline elements having flat surfaces bearing one against the other.

5. -A metal carline comprising a pair of elements each formed with a lateral bend to provide legs of unequal length, the longer legs of which are secured flatwise one to the other adjacentsaid bends, on a line oblique to the longitudinal center line of the car, providing together a structure having diverging legs on each end adapted to bear upon the side walls of the car.

6. -A substantially X-shaped metal carline comprising two elements angular in cross section, each extending across the car from side to side and each formed with a lateral bend, one bend being on one side of the longitudinal center line of the car and the other bend on the other side thereof, said elements being secured together between said bends on a line oblique to said center line, one of said elements being inverted with respect to the other so that the lateral web of one of said elementsl-ies along the upper edge of the structure while the corresponding flange of the other element lies along the lower edge of the structure.

7. The combination with the side walls of a railway car comprising side plates having vertical webs and horizontal webs projecting from the upper edges of the vertical webs, of a substantially X -shaped metal carline comprising two elements angular in cross section, each extending across the car from side to side and each formed with a lateral bend, one bend'being on one side of the longitudinal center line of the car and the other bend on the other side thereof, said elements being secured together between said bends on a'line oblique to said center line,

one of said elements being inverted with respect to the other so that the lateral web of one of said elements lies along the upper edge of the structure while the corresponding flange of the other element lies along the lower ed e of the structure, one leg at each end of t e carline bearing upon and being attached to the lateral web of the side plate, and the other leg having a greater slope and being attached to the vertical web of the side plate.

8. A carline comprising two elements secured together each of which is bent to provide legs of unequal length and has a vertical web and a web extending laterally therefrom, the said elements being arranged with relation to each other so that the lateral webs extend alon the upper and lower edges of the carline, w ereby the neutral axis of the carline, considered as a beam, is substantially the geometrical axis thereof.

9. A metal carline having a pair of legs at each end which slope downwardly from the longitudinally center line of the car toward the side walls, one leg of each pair having a slope greater than the slope of the other leg so that it bears upon the side wall of the car at a point lower than the bearing of the other leg.

10. The combination with the side wall of a railway car corfiprising metal side plates having vertical webs and lateral webs extending from the upper edges of the vertical webs, of a carline having a pair of legs at each end that slope from the longitudinal 10 a greater slope and being attached to the ve r- 1 5 tical web of said plate.

VINTON E. SISSON. 

